Assig-nob to the adams



No. 750,455. PATENTBD JAN. 25, 1904.

W. s. HAMM.

LAMP BURNER.

APPLIOATION FILED AUG. 3. 1903.

x0 MODEL. 7

My w'vtwzooeo I i atented January 26 1904.

UNITED STATES PATENT OFFICE.

WILLIAM S. HAMM, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE ADAMS ANDWESTLAKE COMPANY, OF ILLINOIS.

LAMP-BURNER.

SPECIFICATION formingpart of Letters Patent No. 750,455, dated January26, 1904.

Application filed August 3, 1903.

1'0 aZZ whom it may concern:

Be it known that I, WILLIAM S. HAMM, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Lamp-Burners, of whichthe following is a specification, reference being had to theaccompanying drawings, forming part thereof.

This invention is designed for use with such switch, semaphore, andother stationary sig nal lamps employed in railroad signaling as areintended to be supplied with oil only at long intervals-say from sevento eight days and to remain without attention-such as is required fortrimming of the wick, cleaning of the burner, &c.for an equal length oftime. One of the difiiculties which attend the use of such a lamp isthat the chimney when braced by the wires ordinarily used at the base isunder the vibration to which such a lamp is exposed in service caused tocreep up to such an extent that it will fall out from the wires andbecome broken and sometimes fall upon the light and extinguish it. If,on the other hand, the wires are made so loose that the chimney willhold to its position by gravity or its own weight, if the switch-standis operated with more than ordinary force the jar will throw the chimneyout of the wires and cause it to be destroyed. One of the purposes of myinvention is to overcome these objections. Furthermore, it has beenfound essential to the successful support of the chimney of a lamp ofthis class that its gallery shall be rigid and firmly secured to thebase of the burner and that the chimney-supporting wires, while havingthe necessary elasticity, shall still be rigidly held at their bases.

A feature of my invention therefore relates to the joint constructionand arrangement of the gallery and the wires which support it and alsoserve to hold the chimney in place.

It is necessary that my improved chimneyholder be used with aspecially-constructed chimney-that is to say, one having a small groovenear its base, into which groove the upper curved ends of the wires areadapted to Serial No. 168,083. (No model.)

fit. Thus the chimney while securely grasped by the wires is mainly heldat but one point in its heightthat is to say, at the grooved portion. Itis also essential that the gallery shall be so arranged as to size ordiameter that there shall be means provided for a proper circulation ofair from under it to the chimney and between the chimney and theburner-cone.

In the accompanying drawings, Figure 1 is a side view of alamp-burnerhaving incorporated therewith my improved chimney-holder and showing therelations existing between the latter and the peculiarly-shaped chimneyto which it is adapted. Fig. 2 is aplan View.

The base part of the burner is represented by 1, it having a threadedportion 2 of reduced diameter for attachment to the oil-font. Thegeneral construction of the burner and its adjuncts being substantiallyas described and claimed in application, Serial No. 168,092, filedherewith in the names of Mosher and Legge and in application, Serial N0. 168,082, filed herewith by me need not be here specificallyexplained.

Branching from the dome or upper portion of the base 1 are wires A, eachof which extending horizontally a short distance is then bent inwardly,as shown at 4, upwardly, as at 5, and finally outwardly, as seen at 6,the end being in some cases extended to form a finger-hold. Usually fourof such wires are employed, they forming the support for thechimney-gallery 12, the inner diameter of which is sufiiciently greaterthan that of the burner-cone to enable a proper admission of air fromunder the gallery to the flame through the annular opening 16. Inattaching the gallery 12 to the wires A the latter are run throughperforations formed in the gallery, the union being effected by solderor other means. The support given the gallery by the several wires A isof a rigid and permanent character, and this is effected in a simplemanner.

The chimney is represented by 14, it being provided with a groove 15near its lower edge, into which groove the upper curved portions of theseveral wires A fit, the series of wires thus firmly grasping thechimney mainly at one point, while its base is firmly sustained by thegallery. It has been found that a chimney thus formed and thus held willnot creep up or become detached from the burner by the constantvibration to which the lamp is exposed, and it will be seen by railroadmen that an invention of a simple nature, strong in construction, andnot liable to derangement which will effect this result isone ofimportance. It is evident, however, that while my invention is moreespecially intended for use with what is known as a long-time burnerlampit is equally applicable to lamps of other description.

I do not restrict myself to the exact details of construction,combination, and arrangement herein set forth, it being obvious thatminor variations thereof not involving the exercise of invention may bemade by the skilled mechanic, and such departures from what is hereindescribed and claimed not involving invention I consider as within thescope and terms of my claims.

Having thus described my invention, I claim- 1 1. In a lamp-burner, abase, and a series of chimney supporting wires each branching therefromand extending upwardly, combined with a gallery supported by said wires,a space being left between the inner diameter of the gallery and thecone, substantially as set forth. 2. In a lamp-burner, a base, and aseries of wires each branching therefrom and extending inwardly andupwardly, and each having a final outward bend, combined with a gallerysupported by said wires, an annular space being left between the innerdiameter of the gallery and the cone, said series of wires being adaptedto fit and support a chimney having an annular groove, substantially asset forth. In testimony whereof I hereunto set my hand and seal.

WILLIAM S. HAMM. [L. s.] Witnesses:

LOUIS F. EGGERT, THos. Gr. TROXEL, Jr.

